|reply to KrK |
Re: Uh... Photo switches ?
Someone please correct me if I am wrong but I believe the mercury vapor lights used in most metro areas operate off of 440v and sometimes higher. I believe that most all AP's operate at the 48vdc level and some have direct 120v input. Seems to me that the project engineer failed to ask the right questions about power if at all. At this point, I believe someone mentioned SOLAR.